/**
   @file  list.h
   @brief ENet list management
 */
#ifndef __ENET_LIST_H__
#define __ENET_LIST_H__

#include <stdlib.h>

typedef struct _ENetListNode
{
    struct _ENetListNode* next;
    struct _ENetListNode* previous;
} ENetListNode;

typedef ENetListNode* ENetListIterator;

typedef struct _ENetList
{
    ENetListNode sentinel;
} ENetList;

extern void enet_list_clear(ENetList*);

extern ENetListIterator enet_list_insert(ENetListIterator, void*);
extern void* enet_list_remove(ENetListIterator);

extern size_t enet_list_size(ENetList*);

#define enet_list_begin(list) ((list)->sentinel.next)
#define enet_list_end(list) (&(list)->sentinel)

#define enet_list_empty(list) (enet_list_begin(list) == enet_list_end(list))

#define enet_list_next(iterator) ((iterator)->next)
#define enet_list_previous(iterator) ((iterator)->previous)

#define enet_list_front(list) ((void*)(list)->sentinel.next)
#define enet_list_back(list) ((void*)(list)->sentinel.previous)

#endif /* __ENET_LIST_H__ */